John Cena and Nikki Bella Split After 6 Years Together

John Cena and Nikki Bella have called it quits after six years together.

The pro wrestling power couple -- who got engaged after a tag team match at WrestleMania 33 last April -- announced that they were splitting and calling off their wedding in a social media statement on Sunday.

“After much contemplation and 6 years of being together Nikki Bella and John Cena announced today their decision to separate as a couple,” read a statement posted to Bella’s Instagram account. “While this decision was a difficult one, we continue to have a great deal of love and respect for one another. We ask that you respect our privacy during this time in our lives.”

Cena opened up about the couple’s relationship struggles to ET at the Kids’ Choice Awards back in March, where he said they were in a “much different place” following a rough patch.

"It's a weird thing that our relationship is public for the world to know, [but] what a good takeaway for the folks at home -- relationships are tough," the wrestler shared. "It's hard work, and a lot of times, it has to do with looking at yourself."

John Cena Opens Up About Relationship Troubles With Fiancee Nikki Bella

During an appearance on the Today show last month, Cena opened up about his relationship with Bella, revealing that he made his then-girlfriend sign a "crazy agreement" before they moved in together -- and she did it "totally without question."

"I asked Nicole to move in with me simply because we were both living busy lives, and I wanted to show her that I was ready to be more serious. Now when I look at what I had done then and what I'm doing now, I wish I would've just asked her to marry me then," the WWE wrestler shared.

"I was very abrasive and stern, and she had to sign this crazy agreement to come to the front door," he explained. "[It was] just some sort of thing where I would be protected in case some sort of disaster."

According to Cena, Bella couldn't have been more gung-ho about signing the agreement, which only made him feel "super bad." "It also made me realize that, and this was very early on in our relationship, that this is one young woman I should not let get out of my life," he said. "Because when she says, 'I'm with you because I love you, here's proof that I would still like to be here, here's proof...' it was such a cold thing that turned into, for me, one of the biggest emotional hurdles."

ET has reached out to the couple’s reps for more details. See more from their last public appearance together -- at the premiere of Cena's new movie, Blockers, earlier this month -- in the video below.